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Q: What is cramer rule?

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In math, the purpose of Cramer's rule is to be able to find the solution of a system of linear equations by using determinants and matrices. Cramer's rule makes it easy to find a system of equations that have many unknown variables.

Yes, you can.

Cramer's rule is applied to obtain the solution when a system of n linear equations in n variables has a unique solution.

I suppose Cramer was looking for a generalized method to solve linear systems of equations. Using determinant's was his solution. I've posted a link to a neat site about Cramer's rule.

The history of linear algebra begins with Leibniz in 1693 who studied determinants. In 1750, Cramer invented a rule (Cramer's rule) for solving linear systems.

Cramer's Rule is a method for using Matrix manipulation to find solutions to sets of Linear equations.

Cramer's rule makes it possible to evaluate a determinant without getting confused and making mistakes.

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Of course, Gaussian Elimination!

Hal Cramer's birth name is Harold David Cramer.

Jacqueline Cramer's birth name is Jacqueline Marian Cramer.

Alexandra Cramer's birth name is Alexandra Julia-Blue Cramer.

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